Dumping car



Jan. 16, 192-3.

1,442,187. F. R. STEVEN.

DUMPING CAR.

FILED ram/18.1921.

3 SHEETS-SHEET'2.

Q anoentoz 3 SHEETS-SHEET 3.

F. R. STEVEN. DUMPING CAR Jan. 16, 1923.

HLED MAY 18| 192l.

mum

Patented Janr16, 1923;

a 1 UNITED "STATES t RANK R; STEVEN, or BROOKLYN, NEW Yonkgassrenon TOM; H, rnEfAnwELL-i-I COMPANY, a CORPORATION 'onnnw YORK.

' :Demnw can Application filed May'18, 19 21 .SeIia'LN'oZ. 470,666.

To all whom it may concern:

Be it known that I, FRANK R. SrnvnN, a citizen of the United States, andresident of Brooklyn, in thejcounty of Kings and State of NeW'York, haveinvented certain new. and useful Improvements in Dumping (lars,:of whichthe following is a specificationf .This invention relates to dumpingcars, andmore particularly to slag or cinder cars of the type shownjinPatent No. 1,080,619 to Astrom, December 9, 1913, Wherein the car bodyor ladlevis so mounted as to be moved transversely of the tracks andsimultaneously tilted to discharge its contents.

The aforesaid operation is accomplished by means of a pistonand-cylinder combination, the-full stroke of the pistonbeing I h a body1 as trunnionfi moves alon'g trac k 5, a stationary rack..6 is mounted"onplatformi utilized 1 to effect the movement of the car body from itscentral uprigh't position to 1 its outward dumping position upon eitherside. Hitherto-the problem has been to maintain the Width necessary forthe tilting means Within the limitations imposed by the narrow gaugetracks in a crowded plant.

The cylinder being disposed transversely, it.

becomes necessary to shorten the actual stroke of the piston, and toobtain an in creased effective stroke by means of an intermediatemechanism. The sideupon which the contents .of the ladle are to bedumped, Whether right or left, is determined by a reversing device. Inview of the large massesdealt with, and the forces involved by ashifting center of gravity, checking means, usually! in the form of anoil cylinder, are necessary; and I find it also desirable to cushion thevariousparts against the Vmands of safety require a positive lockingmeans for the ladle in either upright ,01

dumping positioni l The object of the invention isv to com;v

'bine the actuating, reversing, checking,

g5 cushioning and locking 'means 'together w th a. means for:1-I1CI621S11lg the effective piston stroke, in a sim ple'compactstructure, employing the' least possible, number of parts, and allWithin the aforementioned allowable Width and without'lengthening thecar or increasing the, overhang, always ,undesirable in view, of sharpturns and crowded conditions. a 7 i i a With these and other objects'inview, I

. 5 have. gcl ised h pparatus embodying Edy .the dumping car.

' 26 secured by strap :27

invention described in the following-speci fication' andf illustrat,edin'the accompany- 'lng drawings, wherein- -3 of Figure 2f 4 1 representsthe car body or ladle carried,

in a yoke orfbail 2 supported at either end by av trunnion 3.arepresents a platform pivotally mounted; upon, an, ordinary Wheeledtruck (not shownyat eitherendof Upon platform .4: :is, mounted atransverse track 5', upon which rolls trunnion 8. in tilting andxdumpingthe 1 car, .To'insure a positive tiltingyof car l adjacentandparallel to track 5,-and keyed to trunnion 3.'is a gear" 7-1D6Sl 1i11gwith P means of a" valve '11" connected with 'the 1 supply pipe 12.Valve 11' alsocontrols the exhaust, itbeingunderstood that When fluid isadmitted atloneend of cylinder .8, the other endis open to the exhaust.Pistonl13 within cylinder- .8 actuatespiston rod 14,

Whichpasses through checking cylinder 15 ,90

containingfloil and having a bypas s '16 connecting either end.'Checking piston -1 7 is I I I s'ecur'edto piston rod let withincylmder15. momentum of they heavy ladle. The dc- Upon thejfreeend of piston rodl, that is, I the'end opposite that attached to piston. 13,195

and beyond checkingc'ylinder 15,is-{secured- I a trunnion vor cross-head19,- ipivotallyxat- I tached to thejrespective ends ofcvvhich, and

disposed upon-either-sideof checking cylinder 15 area pair ofparall'ellinks 20 xand,

The Opposite ends f nksjzoana 2. respectively are pivotall yconnectedfltol Pai f rocker arms 22 and 23, keyedupon rock. sh ft '24Key 'lup n shaft 24 is a fcrank farm 25, upon hichis pivoted a l nk,

toftrunnion 3, the

latter rotating;in lstrapgfllas theflsame reciprocates, c i Theloc 'ngmechanism ,comprlses; a pair oiiee ee 129 vl e se 04 speetively inbrackets 30 and 31 secured upon platform 4, the said latches 28 and 29respectively cooperating withhooks 41 and 4:2;securedto or integralwith, and disposed uponopposite sides of crank arm 25 to lock the latterin either of its limiting positions. Latches 2S and 29, being pivoted toswing freely, normally hang in looking position and are respectivelyprovided with handles and 33 to permit their being drawn back to releasethe hook -l1 or 42 respectively; handle being less accessible isprovided with an operating rod 3%. Each of latches 28 and 29 isprovidedwith an inclined face 35, whereby as hook 11 or 4-2 descends itwill push the latch asidemitil locking position is reached, whereuponthe latch will swing by gravity to normal position and lock the hook. isa plunger cylinder 36. in Jhich a plunger 3'7, supported byaspring 38,cushions the hook 41 or 4:2 as the case may be, and constitut-es aresilient stopping device for determining the limiting positions ofcrank arm' 25 and of ladle body 1. Plungers 37 also by exertingcontinual pressure upon the under sides of hooks ti and 1-2 respectivelywhen the same are locked, hold the same firmlv in engagement with theirrespective latches and prevent any possibility of accidental re- Ilease. The hooks may be easily disengaged from the latches by admittingpressure upon the proper side of the piston 13'to compress spring 38;then the release having been effected pressure is admitted upon theopposite side to advance the piston and move the ladle 1.

A simple reversing device isprovided in the formv of an alternativeconnection be and piston 13 is at the left handend of its stroke. Crankarm 25 is secured to link 26 by a removable pivot pin passing throughhole 39 in link 26. Asthe piston moves to the right, car body 1 willleft, crank arm 25 is disengagedfrom link 26 while the ladle l is inupright position,

.by the removal of the pivot pin -from hole by the insertion of thepivot pin in hole 40, ,provlded in link 26 for that purpose. Now

whenpiston 13 is moved to the left, ladle 1 twill dump to, the left.

The advantage of compactness of structure afforded by the invention isevident. In the conversion of reciprocating motion into rotation, anintermediateelement, one end of which reciprocates and the other endrotates, sue-has in the ordinary connecting rod, lS always necessary;and this intermediate element must be relatlvely long as compared pistonrod. nnidc relatively long as compared 'w1th Beneath each of latches 28and 29" dump to the right. When t is desired to dump to the inder 15,the checking upon either side of" piston 17 will be the same,-thusavoidin the differential effect due to the areaof the Furthermore, crankarm 25 1s rocker arms 22 and '23, thereby greatly increasing theeffective piston stroke, and to a corresponding extent. reducing theactual travel of piston 13. The advantage here gained is cumulative; notonly are'the lengths of both cylinders 8' and 15 reduced,

but links 20' and 21'may be shortened to an extent far greater than thesaving'in the length of the pistonstroke'ltself. W arm 25 not only thusconstitutes a part of Crank the stroke multiplying device, but, withhooks 41 and 42, preferably integraltl1erewith, also affords a simpleand convenient means of locking and of cushioning, in conjunotion withlatches 28 and 29 andfwith plun'gers 36 respectively; and together withlink 26 and holes 39 and 40 it affords a "con-" ven'ient' reversingmeans.v The result of thus combining the various functions in theat'ortsary number of separate-parts, and to main-.

tain the structure withinjthe desirablelimits of length and breadth. inthe following claims the combination of rocker a-rms22 and I shaft 24and crank arn125 is referred to as an actuating member,,"wh1le"crankarm" alone is referred to as an actuating arm.

What I chum 1s:

.1. The combination in a dumping car,

ported on the frame, an actuating arm 'supi ported on theframe,connecting meansb etween the arm and the trunnion, a'link pivotedupon the" movable element of said cylinder and piston, and connectlngmeans between said link and said arm.

2. The combination in a dumping carlw ith a frame and a tilting andmovable car hodyfizo of a trunnion supporting the car body and supportedon the frame, an actuating arm,v

means operating through said arm for tilting said car body, and'meanscarried by said arm and by said frame for locking the car' body inpredetermined pos tion.

3. The combination in a dumping ear .with a frame and a tilting andmovable car body, of a trunnion supportingthe car body fand supported onthe frame,-an actuating mo mounted on said frame, and means carried bysaid arm for engaging said latches respectively when the arm reaches itslimiting position.

5. The combination in a dumping car, with a frame and a tilting andmovable car body, of a power cylinder and piston, a

trunnion supporting the car body and supported on the frame, anactuating arm supported on the frame, connecting means between the armand the trunnion, connecting means between the arm and the movableelement of said cylinder and piston, a latch secured to said frame, andmeans carried by said actuating arm cooperating with said latch to lockthe car body in predetermined position.

6. The combination in a dumping car with a frame and a tilting andmovable car body, of a trunnion supporting the car body and supported onthe frame, an actuating arm, means operating through said arm fortilting said car body, and means carried by said frame for resilientlyengaging said arm as the latter approaches limiting position.

7 The combination in a dumping car with a frame and a tilting andmovable car body, of a power cylinder and piston, a trunnion supportingthe car body and supported on the frame, an actuating arm pivoted to thecar frame, a link connecting said arm with the movable element of saidcylinder and piston, and means adapted to connect the trunnion when incentral position with the arm when the same is in either of its limitingpositions. I

8. The combination in a dumping car with a frame and a tilting andmovable car body, of a power cylinder and piston, a trunnion supportingthe car body and supported on the frame, an actuating arm. connectingmeans between the arm and the movable element of said cylinder andpiston, means adapted to connect the trunnion when in central positionwith the arm when the same is in either of its limiting positions, andmeans carried by the arm and by the frame for locking the car body inpredetermined position.

9. The combination in adumping car with a frame and a tilting andmovable car body,

of a. power cylinder and piston, a trunnion supporting the car body andsupported on the frame, an actuating arm supported on the frame,connecting"meansfbetween the a'ct ua t-ingi'armand the movable elementof said cylinderand piston, means adapted to connect the trunnion whenincentral-position with the 'armwhen the-same is in either of itslimiting positions, a pair of latches carried by said frame, and meanscarried by said arm 'coopera-tii'ig with said "latches to locli'the carbody in predeterminedposition.

' 1 0. The combination with a pii' otal dump= ing car body, of a carframe on which the same ismounted, trunnions on which the dumping bodyis mounted, said trunnions being movable across said car frame indumping, a fluid pressure cylinder and pisframe, a crosshead connectedwith said cylinder and piston and disposed on one side of the dumpingbodytrunnions when in normal or upright position, an actuating arm formoving the trunnions, said arm being lo.-

'80 ton mounted on an end portion of the cated on the oppositeside'of'the normal position of the trunnions from saidcrosshead, andconnecting means between the actuating arm and crosshead. I

'11. The combination'in a dumping car with a tilting and laterallymovable car body, of a car frame, atrunnion supportlng said car body andsupported on said car,

frame, a powercylinder mounted upon said frame, a plston working 1n saidcylinder, ac-

tuating means between said piston and said trunnion'for laterally movingand tilting said car body, means in said actuating means for multiplyingthe effective stroke of said piston, and a resilient stop for limitingthe position of said car body.

12. The combination in a with a tilting car body, of a trunnion supporting said car body and supported on said frame, an actuating memberpivotally mounted 1n the frame, means for applylng a. thrust upon saidactuating member to rock dumping car i the same, meansconnecting saidactuating member to said trunnion to tilt the car body,

said connecting means being attached to said actuating member at agreater distance from the center of rotation of the latter than thepoint of application of said thrust, and resilient stop means limitingthe movement of said actuating member.

13. The combi ation in a. dumpingscar with a tilting car body, of atrunnion sup- I porting said car body and supported on said frame, acylinder mounted on said frame, a. source of fluidpressure to saidcylinder, controlling means for said fiuidpressure, a piston workingwithinsaid cylinder, a piston rod actuated by said piston, a checking.cylinder'containing checking fluid, a piston in said checking cylinder,said'piston rod passing through said checking cylinder and secured tolast mentioned piston, a'pair of links disposed on either slde of saidchecking cylinder'a'nd each pivotally connected at one end to the freeend of said piston rod, and conbetween the arm and cylinder and piston,21 nesting means between the opposite ends of link connecting said armwith the trunnion, said links and said trunnion for tilting said andmeans for varyingthe effective length car body. of said link accordingto the direction of 5 14;. A dumping car body provided with a movementof the car body in dumping. 15

trunnion transversely movable in dumping, Signed at New York, in thecounty of a fluid pressure cylinder and piston located New York andState of New York this 16th to one side of the normal position of saidday ofMay, A. D. 1921. trunnion, a pivotal actuating, arm adjacent 10the cylinder and piston, connecting means FRANK R. STEVEN,

